I bought this rowing machine last year https://www.amazon.com/gp/product/B08PCSWVSR/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 for 350$, and it's been great for a full body workout when you prefer to stay at home. Very lightly used (and still looks brand new and assembled).

I'm looking to sell the machine as I'm moving. If you pick it up from Mountain View I am willing to give you a discount.